5291891 has 16 divisors (see below), whose sum is σ = 6104160. Its totient is φ = 4542720.

The previous prime is 5291857. The next prime is 5291893. The reversal of 5291891 is 1981925.

It is a cyclic number.

It is not a de Polignac number, because 5291891 - 2⁶ = 5291827 is a prime.

It is a super-2 number, since 2×5291891² = 56008220711762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16751 + ... + 17063.

It is an arithmetic number, because the mean of its divisors is an integer number (381510).

Almost surely, 2^5291891 is an apocalyptic number.

5291891 is a deficient number, since it is larger than the sum of its proper divisors (812269).

5291891 is a wasteful number, since it uses less digits than its factorization.

5291891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its digits is 6480, while the sum is 35.

The square root of 5291891 is about 2300.4110502256. The cubic root of 5291891 is about 174.2623755557.

The spelling of 5291891 in words is "five million, two hundred ninety-one thousand, eight hundred ninety-one".